// License text copyright (c) 2020 MariaDB Corporation Ab, All Rights Reserved.
// "Business Source License" is a trademark of MariaDB Corporation Ab.

// Parameters

// Licensor:             Union.fi, Labs Inc.
// Licensed Work:        All files under https://github.com/unionlabs/union's sui subdirectory                      
//                       The Licensed Work is (c) 2024 Union.fi, Labs Inc.
// Change Date:          Four years from the date the Licensed Work is published.
// Change License:       Apache-2.0
// 

// For information about alternative licensing arrangements for the Licensed Work,
// please contact info@union.build.

// Notice

// Business Source License 1.1

// Terms

// The Licensor hereby grants you the right to copy, modify, create derivative
// works, redistribute, and make non-production use of the Licensed Work. The
// Licensor may make an Additional Use Grant, above, permitting limited production use.

// Effective on the Change Date, or the fourth anniversary of the first publicly
// available distribution of a specific version of the Licensed Work under this
// License, whichever comes first, the Licensor hereby grants you rights under
// the terms of the Change License, and the rights granted in the paragraph
// above terminate.

// If your use of the Licensed Work does not comply with the requirements
// currently in effect as described in this License, you must purchase a
// commercial license from the Licensor, its affiliated entities, or authorized
// resellers, or you must refrain from using the Licensed Work.

// All copies of the original and modified Licensed Work, and derivative works
// of the Licensed Work, are subject to this License. This License applies
// separately for each version of the Licensed Work and the Change Date may vary
// for each version of the Licensed Work released by Licensor.

// You must conspicuously display this License on each original or modified copy
// of the Licensed Work. If you receive the Licensed Work in original or
// modified form from a third party, the terms and conditions set forth in this
// License apply to your use of that work.

// Any use of the Licensed Work in violation of this License will automatically
// terminate your rights under this License for the current and all other
// versions of the Licensed Work.

// This License does not grant you any right in any trademark or logo of
// Licensor or its affiliates (provided that you may use a trademark or logo of
// Licensor as expressly required by this License).

// TO THE EXTENT PERMITTED BY APPLICABLE LAW, THE LICENSED WORK IS PROVIDED ON
// AN "AS IS" BASIS. LICENSOR HEREBY DISCLAIMS ALL WARRANTIES AND CONDITIONS,
// EXPRESS OR IMPLIED, INCLUDING (WITHOUT LIMITATION) WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, AND
// TITLE.

module zkgm::token_order_ack {
    use zkgm::zkgm_ethabi;

    public struct TokenOrderAck has copy, drop, store {
        fill_type: u256,
        market_maker: vector<u8>
    }

    public fun new(fill_type: u256, market_maker: vector<u8>): TokenOrderAck {
        TokenOrderAck { fill_type, market_maker }
    }

    public fun fill_type(order: &TokenOrderAck): u256 {
        order.fill_type
    }

    public fun market_maker(order: &TokenOrderAck): &vector<u8> {
        &order.market_maker
    }

    public fun encode(ack: &TokenOrderAck): vector<u8> {
        let mut buf = vector::empty<u8>();
        zkgm_ethabi::encode_uint<u256>(&mut buf, ack.fill_type);
        // `market_maker` offset
        zkgm_ethabi::encode_uint<u8>(&mut buf, 0x40);

        zkgm_ethabi::encode_bytes(
            &mut buf,
            &ack.market_maker,
        );
        buf
    }

    public fun decode(buf: &vector<u8>): TokenOrderAck {
        let mut index = 0;
        TokenOrderAck {
            fill_type: zkgm_ethabi::decode_uint(buf, &mut index),
            market_maker: zkgm_ethabi::decode_bytes_from_offset(buf, &mut index),
        }
    }

    #[test]
    fun test_encode_decode() {
        let output =
            x"00000000000000000000000000000000000000000000000000000000001e84800000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000006761736466736e6564666c6561736e64666c656e6173646c66656e6173656c646e6c6561736e64666c65616e7364666c656e6173646c65666e616c73656e64666c656e61736466656c6e61736c6564666c6561736e64666c656e61736c6465666e6c65616e73646600000000000000000000000000000000000000000000000000";
        let ack_data = TokenOrderAck {
            fill_type: 2000000,
            market_maker: b"asdfsnedfleasndflenasdlfenaseldnleasndfleansdflenasdlefnalsendflenasdfelnasledfleasndflenasldefnleansdf"
        };

        let decoded = decode(&output);
        assert!(decoded == ack_data, 1);
        assert!(encode(&decoded) == output, 2);
    }
}
